The following package is available from ThinkMap
The Visual Thesaurus is a thesaurus, a synonym finder, and a dictionary that displays words with their synonyms grouped according to meaning. It contains an audio feature that demonstrates correct pronunciation. The Visual Thesaurus aids in all stages of writing, from brainstorming to revising to finishing the final draft by suggesting words and concepts, teaching relationships, and refining language choice. It enables users to understand language in a powerful new way. Features include lesson plans for teachers.